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Om is an experimental concatenative programming language implemented as a header-only C++ library. Unlike typical concatenative languages that use postfix notation, Om uses prefix notation, which enables eager evaluation and efficient recursion without stack overflow. Programs are composed of three elements: operators, separators, and operands. The language features a unique 'panmorphic' type system where all data values are represented as operands. The documentation covers building from source (using CMake, Boost, ICU4C), embedding the library in C++/Objective-C++ projects, language syntax and semantics, built-in operations (drop, copy, choose, quote, dequote, define, rearrange), Unicode support with NFD normalization, and how to extend the language with new operations or data types in C++.

Om: Main Page